Novel multifunctional ventilating and heating waist cushion

A novel multifunctional ventilating and heating waist cushion structurally comprises a waist cushion body, the left portion and the right portion of the rear end face of the waist cushion body are each provided with an assembling groove, a miniature circulating fan is installed in each assembling groove, the output end of each miniature circulating fan faces the front end face of the waist cushion body and is provided with a flow guide pipeline, and a ventilating and heat dissipating structure is arranged on the waist cushion. Corresponding modes can be selected according to environment weather, when the weather is hot, a conventional wind power output mode of the micro circulating fan can be started, the micro circulating fan guides airflow into the spiral wind guide groove through the flow guide pipeline, then the airflow is output through the mesh type wind outlet piece on the back to dissipate heat, and when the weather is cold, a heating piece can be attached to the mesh type wind outlet piece, and the h